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lutik1710 [3]
3 years ago
5

What is the solution to the following system of equations? y = −x^2 − 5x − 4 y = −x^2 + 9x − 18

Mathematics
1 answer:
nika2105 [10]3 years ago
4 0

Answer:

X=1   Y= -10

Step-by-step explanation:

Y=-x^{2} -5x-4 equation 1 \\Y=-x^{2} + 9x-18 equation 2

using equation 1, we substitute in equation 2

We have

-x^{2} -5x-4 = -x^{2} + 9x-18\\-14x=-14\\x=1\\

so, we substitute the X value in equation2

we have>

y=-(1^{2})+ 9(1)-18)=-10\\y=-10

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